What Is PHP? Why PHP? & How to Use It?
PHP Introduction
PHP Case Sensitivity
In PHP, all user-defined functions, classes, and keywords (e.g. if, else, while, echo, etc.) are case-insen sitive.
In the example below, all three echo statements below are legal (and equal):
Example :- 1
<!DOCTYPE html>
<html>
<body>
<?php
ECHO "Hello World!<br>"; echo "Hello World!<br>"; EcHo "Hello World!<br>";
?>
</body>
</html>
PHP Introduction
PHP Case Sensitivity
In PHP, all user-defined functions, classes, and keywords (e.g. if, else, while, echo, etc.) are case-insen sitive.
In the example below, all three echo statements below are legal (and equal):
Example :- 1
<!DOCTYPE html>
<html>
<body>
<?php
ECHO "Hello World!<br>"; echo "Hello World!<br>"; EcHo "Hello World!<br>";
?>
</body>
</html>
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